南鱼座：多面体与几何变换的复合图形

GeoGebra 命令及参数

1. Polygon(A, B, 3) → poly1, f_2, g, h_2, C
2. Icosahedron(poly1, true) → a, D, faceACF, faceAFG, faceADG, faceABD, faceBDH, faceBEH, faceBCE, faceCEI, faceCFI, faceEHK, E, faceEIK, faceIKL, faceFIL, faceHJK, faceJKL, faceGJL, faceFGL, faceDHJ, faceDGJ, edgeAF, F, edgeCF, edgeAG, edgeFG, edgeAD, edgeDG, edgeBD, edgeBH, edgeDH, edgeBE, edgeEH, G, edgeCE, edgeCI, edgeEI, edgeFI, edgeEK, edgeHK, edgeIK, edgeIL, edgeKL, edgeFL, H, edgeJK, edgeHJ, edgeJL, edgeGL, edgeGJ, edgeDJ, I, J, K, L
3. Polygon(A, B, C) → t1, c, a_1, b
4. Polygon(G, D, A) → t2, a_2, g_1, d
5. Midpoint(A, C) → O
6. Midpoint(A, B) → P
7. Midpoint(C, B) → Q
8. Midpoint(A, D) → R
9. Midpoint(G, D) → S
10. Midpoint(G, A) → T
11. Centroid(poly1) → M
12. Circle(M, e) → k
13. Point(k) → N
14. Segment(I, N) → i
15. Segment(C, N) → j
16. Segment(F, N) → l
17. Segment(L, N) → m
18. Segment(E, N) → n
19. Segment(B, N) → p
20. Segment(N, A) → q
21. Segment(G, N) → r
22. Segment(K, N) → s
23. Segment(H, N) → t
24. Segment(D, N) → f
25. Segment(J, N) → h